Tubes / semiconductors by category - Manufacturer
Selected: Calvertron (tubes) - see also CEI; Lafox, IL
| Name | Maker | Year | User | Usage | Type | Base |  |
 |
 |
 |
 |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EF80 | Common typ | 1950 | RF/IF-Sta | Vacuum P | Noval, | 2 | 148 | 37 | 2 | 37 | F | 24 | 4342 | |
| 6BQ6GTB | Common typ | Radio/TV-r | Beam Pow | Octal ( | 1 | 23 | 5 | – | 2 | 3 | 334 | |||
| 42 | Common typ | 1932 | Radio/TV-r | Power/Out | Vacuum P | 6-Pin-B | 5 | 73 | 18 | 1 | 3 | F | 14 | 3858 |
3 tubes or semiconductors found.